x = int(input())

if 400 <= x and x <= 599:
  ans = 8
elif 600 <= x and x <= 799:
  ans = 7
elif 800 <= x and x <= 999:
  ans = 6
elif 1000 <= x and x <= 1199:
  ans = 5
elif 1200 <= x and x <= 1399:
  ans = 4
elif 1400 <= x and x <= 1599:
  ans = 3
elif 1600 <= x and x <= 1799:
  ans = 2
else:
  ans = 1
  
print(ans) x = int(input()) x int(input()) int input() input if 400 <= x and x <= 599:
  ans = 8
elif 600 <= x and x <= 799:
  ans = 7
elif 800 <= x and x <= 999:
  ans = 6
elif 1000 <= x and x <= 1199:
  ans = 5
elif 1200 <= x and x <= 1399:
  ans = 4
elif 1400 <= x and x <= 1599:
  ans = 3
elif 1600 <= x and x <= 1799:
  ans = 2
else:
  ans = 1
   400 <= x and x <= 599 400 <= x 400 x x <= 599 x 599 ans = 8 ans 8 elif 600 <= x and x <= 799:
  ans = 7 600 <= x and x <= 799 600 <= x 600 x x <= 799 x 799 ans = 7 ans 7 elif 800 <= x and x <= 999:
  ans = 6 800 <= x and x <= 999 800 <= x 800 x x <= 999 x 999 ans = 6 ans 6 elif 1000 <= x and x <= 1199:
  ans = 5 1000 <= x and x <= 1199 1000 <= x 1000 x x <= 1199 x 1199 ans = 5 ans 5 elif 1200 <= x and x <= 1399:
  ans = 4 1200 <= x and x <= 1399 1200 <= x 1200 x x <= 1399 x 1399 ans = 4 ans 4 elif 1400 <= x and x <= 1599:
  ans = 3 1400 <= x and x <= 1599 1400 <= x 1400 x x <= 1599 x 1599 ans = 3 ans 3 elif 1600 <= x and x <= 1799:
  ans = 2 1600 <= x and x <= 1799 1600 <= x 1600 x x <= 1799 x 1799 ans = 2 ans 2 ans = 1 ans 1 print(ans) print ans x = int(input()) int(input()) x ans = 7 7 ans ans = 6 6 ans ans = 8 8 ans ans = 3 3 ans ans = 1 1 ans ans = 5 5 ans ans = 4 4 ans ans = 2 2 ans
x = int(input())

if 400 <= x and x <= 599:
  ans = 8
elif 600 <= x and x <= 799:
  ans = 7
elif 800 <= x and x <= 999:
  ans = 6
elif 1000 <= x and x <= 1199:
  ans = 5
elif 1200 <= x and x <= 1399:
  ans = 4
elif 1400 <= x and x <= 1599:
  ans = 3
elif 1600 <= x and x <= 1799:
  ans = 2
else:
  ans = 1
  
print(ans)